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When the horizontally-affixed volute springs were placed in compression by either the front or the rear bogie wheel arm, the pressure from the load was transmitted onto the opposite arm, thus helping to maintain tension on the tracks. Compared to the VVSS system which it replaced on the M4, the HVSS
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Battle experience showed that the service life of the original vertical volute spring suspension (VVSS) of the late model M4 was shortening due to the tank's increasing combat weight with larger guns and heavier armor. Beginning in mid-1944, M4A3 models of the
Sherman adopted a newly developed
126:). Under compression the coils slide over each other, affording a long travel. The result is more stable and powerful than any leaf, coil, or torsion bar spring in the same volume. Mounted vertically in a road wheel bogie for a pair of road wheels on a tank made a very compact unit.
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This type of a suspension system involved springing the pair of dual-mounted road wheels on each bogie against each other with a volute spring. First tried by Harry Knox on the Light Tank T6 project in 1938, it was essentially a version of the
British
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to compensate for surface irregularities. This type of the suspension system was mainly fitted on US and
Italian tanks and armored fighting vehicles starting from throughout the 1930s up until after the end of the
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The horizontal arms connected to the road wheels are cranks that drive the vertical arm up and down. The vertical arm connects to the volute spring in the box-shaped area above.
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The Rock Island
Arsenal produced a small tank for the cavalry which used vertical volute spring suspension instead of leaf spring suspension. Standardized as the
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The VVSS system of an M32 Tank
Recovery Vehicle (ARV) on display at the Yad La-Shiryon military museum in Latrun in Israel.
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system was heavier and stronger and allowed the changing of individual wheels aside from increasing wheel travel space.
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using the vertical volute spring system. The springs are just visible behind the rectangular covers.
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would make US tanks considerably more reliable. These included rubber-bushed tracks, rear mounted
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333:. Advances in Engineering Research. Vol. 138. Academy of Armored Force Engineering.
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Tanks & Artillery: Standard Guide to U S World War II Konrad F., Jr. Schreier p. 6
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series. Design features of the Stuart were scaled up for use in the first
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Development and main research status of tracked vehicle suspension system
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that replaced the
Horstmann's coil spring with a pair of volute springs.
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The suspension was developed in 1933 by Harry Knox, better known for his
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The
Automotive Assembly: Research and Development of Materiel
256:"Light Tanks T1E4 and T2E1: Experiments on an Ideal Platform"
133:, and was first tested on T2E1 light tank prototype in 1934.
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During the 1930s, many innovations in the components of
347:. Universität der Bundeswehr, Universitätsbibliothek.
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The HVSS system of an
Israeli M51 Super Sherman tank.
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U.S. Vertical volute spring suspension (AMCP 706-355)
338:Merhof, Wolfgang; Hackbarth, Ernst-Michael (2015).
222: – Vehicle suspension that uses a torsion bar
319:. Vol. 3. U.S. Government Printing Office.
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324:Xu, Guoying; Xue, Dabing; Wang, Tao (2017).
173:Horizontal Volute Spring Suspension (HVSS).
156:which would evolve into the more successful
70:The vertical volute-springs of the American
216: – Type of tracked vehicle suspension
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228: – System of vehicle propulsion
144:in 1937. The design was used in the
377:Armoured fighting vehicle equipment
313:"Chapter 11: The Suspension System"
309:United States Army Materiel Command
210: – Suspension system for tanks
177:Horizontal volute spring suspension
18:Horizontal volute spring suspension
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118:A volute spring is a compression
32:vertical volute spring suspension
27:Type of vehicle suspension system
140:, it entered service with the
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282:Globalsecurity M1 Combat Car
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122:in the form of a cone (a
131:Knox Automobile Company
220:Torsion bar suspension
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270:U.S. patent 1,947,475
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214:Horstmann suspension
192:Horstmann suspension
34:system is a type of
208:Christie suspension
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38:system which uses
36:vehicle suspension
354:978-3-943207-13-2
111:and the vertical
16:(Redirected from
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387:M4 Sherman tanks
382:Tank suspensions
372:Tracked vehicles
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45:Second World War
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113:volute spring
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302:Bibliography
293:AFV database
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115:suspension.
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87:An American
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168:Replacement
150:Stuart tank
105:light tanks
79:Development
72:Stuart tank
366:Categories
162:M4 Sherman
51:Principle
47:in 1945.
311:(1963).
202:See also
142:US Army
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158:M3 Lee
124:volute
120:spring
345:(PDF)
331:(PDF)
233:Notes
349:ISBN
160:and
30:The
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20:)
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